A uniform light paving frame

Abstract

The present invention provides a uniform light spreading frame, which relates to the field of picture frames; a transverse light spreading channel is formed by a light projector, an upper light guide eaves and a lower light guide eaves, and a light focusing groove is surrounded by the transverse light spreading channel, and the lower light guide eaves extends an eaves-like structure relative to the light projector in the direction of the light focusing groove, so that the light emitted by the light projector passes through the eaves-like structure and then spreads the light uniformly to the bottom plate surface below the light focusing groove. By setting the eaves-like structure, the uniform distribution of light on the bottom plate surface is ensured, and the brightness dividing line and corresponding light spots generated by the central part of the bottom plate being significantly lower than the brightness of the peripheral part in the prior art are solved, and the thin feature of the overall thickness can be ensured. Even by setting and adjusting the upper light guide eaves and the eaves-like structure to extend different widths in the direction of the light focusing groove, different areas on the bottom plate surface can achieve different light spreading effects, meet various art display needs, and have substantial improvements and enhancements on the light spreading quality and visual effects of existing internal light-spreading picture frames.

Description

Technical Field

[0001] The invention relates to the field of picture frames / photo frames, and in particular to a uniformly light-paved frame, which substantially enhances and improves the light-paving quality of an existing light-paved photo frame. Background Art

[0002] The existing internally illuminated picture frame structures are all light sources arranged outside the window of the picture frame to project light toward the center of the window, and the bottom plate or the picture work is arranged at the bottom, so that the light is spread on the surface of the bottom plate or the picture work. (As described in patent number: 2020201106663)

[0003] As a carrier and foil for paintings, the light-spreading picture frame has two very important indicators: the light-spreading effect and the overall thinness of the picture frame. The ideal light-spreading effect is that the brightness of the middle position of the picture is slightly higher than that of the surroundings to highlight the display theme of the picture, or the light on the entire surface of the picture is evenly spread. In order to achieve this effect, the commonly used method is to set spotlights outside the picture frame to directly project light to the picture frame.

[0004] The existing internally illuminated picture frame structure has more or less an inevitable defect, which is a normal physical optical phenomenon: since the light is projected from all sides to the central focusing groove, there is an obvious spot effect and brightness dividing line on the bottom plate or the surface of the picture work, that is, the brightness of most of the area in the central position is dark, while the peripheral area near the edge is obviously bright (the spread light effect that is more taboo in the boundary). The intensity of this phenomenon is inversely proportional to the vertical distance between the picture work and the light source. Generally, only when the overall thickness reaches more than one-fifth of the width of the focusing groove can there be a corresponding uniform spread light effect. Such an overly thick picture frame as a whole is also one of the important factors that directly affect the overall artistic effect of the picture work. At the same time, the thicker the picture frame is, the weaker the light projected onto the surface of the picture work will become, making it impossible for the picture frame to reflect the theme content and ideas of the picture work, and ultimately resulting in the overall artistic display effect not being extreme. The above contradictions have always affected the public's recognition and acceptance of the existing internally illuminated picture frames. Summary of the invention

[0005] The purpose of the present invention is to provide a uniform light-spreading frame, which projects light horizontally from the periphery to the center inside the picture frame, and increases the proportion of horizontal light by arranging a structure that can adjust the ratio between the horizontal light and the vertical downward light in the projected light, thereby ensuring that the light-spreading intensity of the central part of the picture work below the light-spreading frame is at least not significantly lower than the light-spreading intensity of the peripheral part, so that the thickness of the entire picture frame and the light-spreading on the surface of the picture work can achieve a better visual effect.

[0006] Based on the above purpose, the present invention provides a uniform light spreading frame, including a light projector, an upper light guide eave and a lower light guide eave;

[0007] The upper light-guiding eaves and the lower light-guiding eaves which are arranged up and down and spaced a certain distance apart form a transverse light-spreading channel and are connected to the light-projecting element; the transverse light-spreading channel which includes at least two sections with opposite light-spreading directions forms a central light-focusing groove; the light-projecting element is arranged on the periphery of the light-focusing groove so that at least a part of the lower light-guiding eaves is located between the light-projecting element and the light-focusing groove to form an eaves-like structure, and the light emitted by the light-projecting element passes through the corresponding eaves-like structure and projects light onto the light-focusing groove and the space below the light-focusing groove.

[0008] The vertical positional relationship between the upper light-guiding eaves and the lower light-guiding eaves is a positional relationship based on the longitudinal direction, including a positional relationship in which the longitudinal projection areas of the two at least intersect or do not intersect at all. One of the necessary conditions for forming a transverse light-laying channel is that it must be connected with a corresponding light-projecting component. The upper light-guiding eaves and the lower light-guiding eaves without a connected light-projecting component cannot be called a transverse light-laying channel; the connection between the transverse light-laying channel and the light-projecting component means that the light emitted by the light-projecting component can pass through the connected transverse light-laying channel to project light laterally in the direction of the eave-like structure (i.e., the direction of the focusing groove).

[0009] Furthermore, the light projector is generally a light-emitting structure with a scattered light characteristic, which may be an electroluminescent device (such as an LED light strip or a fluorescent lamp, etc.) or a light-emitting structure composed of an electroluminescent device and a light-transmitting material (such as a strip light bar or a horizontal light-emitting box or a light-emitting structure related to a transparent light guide plate). Because most light sources have scattered light characteristics and have a certain longitudinal scattering angle, the uniformity of the light distribution is affected.

[0010] Further, the lower light guide eaves is arranged below the light projector, the upper light guide eaves is arranged above the light projector, and the upper light guide eaves covers the entire area of ​​the eaves structure of the lower light guide eaves, that is, the longitudinal projection area of ​​the upper light guide eaves covers the entire area of ​​the eaves structure of the lower light guide eaves; or,

[0011] The upper light-guiding eaves covers a part of the eaves-like structure of the lower light-guiding eaves, that is, the longitudinal projection area of ​​the upper light-guiding eaves covers a part of the eaves-like structure of the lower light-guiding eaves;

[0012] The light projector emits light through the horizontal light-spreading channel between the upper light-guiding eaves and the lower light-guiding eaves and projects light to the focusing groove and the space below it; by setting the upper light-guiding eaves and the lower light-guiding eaves to relatively different widths and areas, it is advantageous to achieve different light-spreading effects.

[0013] Furthermore, the upper light guide eaves covers one of the entire area and a partial area of ​​the front surface of the light projector, and does not cover the eaves structure of the lower light guide eaves;

[0014] Furthermore, it also includes a base plate, which is located below the focusing groove, that is, the longitudinal projection area of ​​the focusing groove has at least an intersection with the base plate, so that at least a part of the surface of the eaves-like structure is higher than the surface of the base plate located within the longitudinal projection area of ​​the focusing groove; the light projected to the space below the focusing groove is spread on the surface of the base plate.

[0015] Furthermore, the light projecting element emits light laterally, with the light emitting direction being toward the light focusing groove, and directly projects light toward the light focusing groove; or,

[0016] The light projecting member emits light longitudinally, and indirectly projects light to the light focusing groove through reflection and scattering of at least one of the back side of the upper light guide eave and the front side of the lower light guide eave.

[0017] Furthermore, the shape of the light-focusing groove is a closed structure; or, the shape of the light-focusing groove is an open structure formed by two oppositely arranged transverse light-paving channels.

[0018] Furthermore, the light focusing groove of the closed structure is in the shape of a rectangle, a triangle, other polygons, a circle, an ellipse, a heart, or a fan.

[0019] Furthermore, the distance between the outer edge of the eave-like structure close to the light-focusing groove and the light-projecting element is not less than the longitudinal distance between the highest point of the front surface of the eave-like structure and the back surface of the upper light-guiding eaves;

[0020] The longitudinal distance between the bottom plate surface below the focusing groove and the highest point of the front surface of the eaves structure is not less than the longitudinal distance between the highest point of the front surface of the eaves structure and the back surface of the upper light guide eaves.

[0021] Furthermore, the base plate and the eaves-like structure are an integrated structure.

[0022] Furthermore, the eaves-like structure which is an integral structure with the base plate is in a step-like or protruding shape.

[0023] Furthermore, it also includes a picture frame, and at least one of the upper light guide eaves, the lower light guide eaves and the light projection element is arranged under the front frame eaves of the picture frame.

[0024] Furthermore, at least two of the picture frame, the upper light guide eaves and the lower light guide eaves are integrated structures.

[0025] Furthermore, the light projector and the lower light guide eaves are an integrated structure, that is, the light projector is provided with the lower light guide eaves.

[0026] Furthermore, the lower light-guiding eaves are horizontal eaves, sloped eaves, curved eaves, or stepped eaves;

[0027] The upper light-guiding eaves are horizontal eaves, sloped eaves, curved eaves or stepped eaves;

[0028] The shape settings of the upper light-guiding eaves and the lower light-guiding eaves are conducive to achieving different lighting effects.

[0029] Furthermore, the upper light-guiding eaves is provided with a hollow light-transmitting pattern.

[0030] Furthermore, it also includes a picture work, and the picture work is arranged on the surface of the base plate; or

[0031] The said painted work itself is the base;

[0032] The longitudinal projection areas of the picture work and the focusing groove at least have an intersection.

[0033] Furthermore, the photographic work is a mirror, a wall, a ceiling, a painting or calligraphy work, a photograph, a print, a knitted or embroidered work, a sculpture, an antique collection, or a substrate with a luminous pattern.

[0034] Furthermore, it also includes a transparent protective layer, which is arranged above the upper light guide eaves; or,

[0035] The upper light guide eaves is arranged above the transparent protective layer;

[0036] The longitudinal projection area of ​​the transparent protective layer covers one of the entire area and a partial area of ​​the upper light-guiding eaves, and covers the entire area of ​​the light-focusing groove opening.

[0037] Furthermore, the transparent protective layer is one-way glass or glass covered with a one-way film, that is, the back side (rear) can be seen from the front, but not in the reverse direction. The light-projecting element arranged under the transparent protective layer emits light, and a part of the light is reflected to the bottom of the focusing groove by the transparent protective layer with one-way light-transmitting characteristics sealed at the front notch of the focusing groove, thereby improving the brightness and quality of the lighting.

[0038] Furthermore, it also includes a transverse light-transmitting cover, which transversely covers the side of the transverse light-paving channel close to the focusing groove, and the transverse light-transmitting cover is used to ensure the cleanliness of the transverse light-paving channel.

[0039] The technical solutions and key features of the present invention are found after long-term practice and countless experiments: in the focusing trough structure composed of the horizontal light-laying channels relative to the light-projection direction, the lower light-guiding eaves located below the light-projecting element extends an eaves-like structure for the light-projecting element in the direction of the focusing trough, ensuring that the light radiated to the bottom plate surface below the focusing trough passes through the top of the eaves-like structure, that is, the light projected by the light-projecting element passes through the top of the eaves-like structure of the lower light-guiding eaves before being radiated to the bottom plate surface below it, which can effectively solve the existing problems of light-laying picture frames and the contradictions with the requirements, such as the contradiction between the overall thickness and the uniform quality of light laying. The distance between the higher part of the eaves-like structure and the light-projecting element is also one of the important factors affecting the light-laying effect. The height of the eaves-like structure is proportional to the uniformity of light laying; the distance between the higher part of the eaves-like structure and the light-projecting element is proportional to the uniformity of light laying.

[0040] Experiments have shown that the eaves structure of the lower light guide eaves is the key feature to solve the existing light-paving picture frame lighting quality and light spot problems, and has substantially enhanced and improved the existing light-paving picture frame lighting quality. The enhanced improvements and unexpected effects achieved through the implementation of the technical solution are as follows: 1. Under the premise of ensuring the uniformity of the bottom plate surface lighting, the picture frame implemented by this technical solution is compared with the existing

[0041] 1. A picture frame that can achieve the same uniformity of light distribution can have its overall thickness reduced by at least 80%, that is, at least one-fifth of the thickness can be used to achieve the uniformity of light distribution that meets the industry's requirements; 2. As the overall thickness is reduced, the light intensity (i.e., brightness) of the light distribution on the surface of the base plate is also greatly increased; 3. By adjusting the width of the eaves structure of the lower light-guiding eaves and its longitudinal spacing distance relative to the projector (i.e., the absolute position of the upper and lower parts), and even the lateral and longitudinal distances between it and the surface of the base plate, a variety of special base plate surface light distribution effects can be unexpectedly achieved, such as the uniform light effect, the theme-highlighting effect of having a slightly brighter middle and darker edges, the slightly brighter effect of specifying a certain area, etc.

[0042] 4. The upper light guide eaves are used to cover the light projector and / or other unnecessary light-emitting parts when viewed from the front.

[0043] In addition to causing unnecessary light interference to the vision, it also cooperates with the lower light-guiding eaves to form a flat horizontal light-paving channel, ensuring that more light is projected onto the surface of the base plate; more importantly, on the basis that the eaves-like structure of the lower light-guiding eaves can independently achieve an unexpectedly uniform light-paving effect, as an auxiliary structure of the eaves-like structure, by setting and adjusting the extension length of the upper light-guiding eaves in the direction of the focusing groove, the light-paving effect of the base plate can be unexpectedly more delicately set and adjusted at the secondary level, assisting the eaves-like structure of the lower light-guiding eaves to make the light-paving effect more perfect. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0045] Figure 1A A schematic front view of a uniform light paving frame provided by an embodiment of the present invention;

[0046] Figure 1B for Figure 1A The structure shown is based on Figure 1A A schematic diagram of the cross-sectional structure at the dotted line position;

[0047] Figure 1C For Figure 1B A similar schematic diagram of the cross-sectional structure of a uniformly paved light frame;

[0048] Figure 1D It is a schematic diagram of the cross-sectional structure of a uniform light-paving frame;

[0049] Figure 2 It is a schematic diagram of the cross-sectional structure of a uniform light-paving frame;

[0050] Figure 3 It is a schematic diagram of the cross-sectional structure of a uniform light-paving frame;

[0051] Figure 4 It is a schematic diagram of the cross-sectional structure of a uniform light-paving frame;

[0052] Figure 5 It is a schematic diagram of the cross-sectional structure of a uniform light-paving frame;

[0053] Figure 6 It is a schematic diagram of the cross-sectional structure of a uniform light-paving frame;

[0054] Figure 7 It is a schematic diagram of the cross-sectional structure of a uniform light-paving frame;

[0055] Figure 8 It is a front view schematic diagram of a uniform light-laying frame.

[0056] Figure numerals: 1. LED strip light source, 2. Eaves-like structure of lower light-guiding eaves, 3. Lower light-guiding eaves, 4. Upper light-guiding eaves, 5. Transparent material related to the light-projecting element, 6. Non-transparent light-transmitting material related to the light-projecting element, 7. Bottom plate, 8. Painting work, 9. Painting frame, 10. Focusing groove, 11. Transparent protective layer, 12. Horizontal light-transmitting cover. DETAILED DESCRIPTION

[0057] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0058] Example

[0059] like Figure 1A and Figure 1B This embodiment provides a uniform light-paving frame in which the focusing groove 10 is in the shape of a rectangle, including: a light-projecting element, an upper light-guiding eave 4 and a lower light-guiding eave 3 .

[0060] The focusing groove 10 is a closed rectangle, which is equivalent to being enclosed by two groups of transverse light-paving channels with opposite light-paving directions (up and down and left and right); the transverse light-paving channel is composed of an upper light-guiding eave 4 and a lower light-guiding eave 3 which are arranged at a certain distance above and below, and a light-projecting component is arranged inside the transverse light-paving channel (that is, the lower light-guiding eave 3 is arranged below the light-projecting component, the upper light-guiding eave 4 is arranged above the light-projecting component, and the light-projecting component is located on the periphery of the focusing groove 10), that is, the light-projecting component is connected to the transverse light-paving channel.

[0061] The light projector is a light emitting structure composed of an LED strip light source 1 and a horizontally arranged transparent light guide plate 5. The LED strip light source 1 emits light laterally and is arranged in a groove opened in the transparent light guide plate 5, and surrounds a rectangular light focusing groove 10. The light emitting direction of the LED strip light source 1 is toward the light focusing groove 10. The light projector is arranged in the horizontal light paving channel, so that the lower light guide eaves 3 forms an eaves structure 2 on the side close to the light focusing groove 10, that is, the eaves structure 2 is the part of the lower light guide eaves 3 located between the light projector and the light focusing groove 10.

[0062] In this embodiment, the upper light-guiding eaves 4 and the lower light-guiding eaves 3 are both horizontal eaves; the width of the eaves structure 2 (i.e., the distance between the light-projecting element and the outer edge of the lower light-guiding eaves 3 on the side close to the focusing groove) is not less than the height of the transverse light-paving channel (i.e., the longitudinal distance between the upper light-guiding eaves 4 and the eaves structure 2); the upper light-guiding eaves 4 completely covers the light-projecting element from the front, and the area of ​​the upper light-guiding eaves 4 is smaller than the area of ​​the lower light-guiding eaves 3, and the upper light-guiding eaves 4 covers part of the area of ​​the eaves structure 2, so that the part of the eaves structure 2 on the lower light-guiding eaves 3 close to the focusing groove is exposed. When viewed from the front, the light-projecting element cannot be seen, but the upper light-guiding eaves 4, the rectangular focusing groove 10 with a hollow middle, and the exposed part of the eaves structure 2 (i.e., the rectangular ring shape corresponding to the rectangular focusing groove 10) can be seen.

[0063] When the LED strip light source 1 emits light, the light enters the interior of the transparent light guide plate 5 and is totally reflected and transmitted laterally, and is scattered from the side end face of the transparent light guide plate 5 close to the focusing groove 10. The longitudinal divergence angle of the scattered light is large. When the scattered light passes through the horizontal light-paving channel above the eaves structure 2, the scattering angle of the light is "squeezed and guided" up and down by the back of the upper light-guiding eaves 4 and the front of the eaves structure 2, and the transmission direction and projection characteristics of the light change. The light projected from the horizontal light-paving channels around the focusing groove 10 is concentrated and projected toward the focusing groove 10, and can be more evenly projected to the space below the focusing groove 10. If the eaves structure 2 is not provided, when the scattered light is projected into the space below the focusing groove 10, the light will not be uniform, and the peripheral brightness of the space below the focusing groove 10 will be significantly higher than the brightness of the area near the center.

[0064] Further, such as Figure 1C As shown, Figure 1B The structure shown is different in that the light projector is a light-emitting structure composed of an LED strip light source 1 and a non-transparent light-transmitting material 6, wherein the LED strip light source 1 is arranged in a horizontal U-shaped box and emits light laterally, and the non-transparent light-transmitting material 6 is sealed at the opening of the U-shaped box to form a horizontal light-emitting box, and the upper side wall of the box is an upper light-guiding eaves 4, and the lower light-guiding eaves 3 is arranged below the horizontal U-shaped light-emitting box, and extends an eaves-like structure 2 in the direction of the focusing groove 10. Because the LED strip light source 1 in the horizontal U-shaped light-emitting box emits light through the non-transparent light-transmitting material 6 at the opening of the U-shaped box, the projected light has the characteristic of a large scattering angle, so it is necessary to set a lower light-guiding eaves 3 to provide an eaves-like structure 2.

[0065] Optionally, the lower side wall of the horizontal U-shaped light-emitting box can be an integrated structure with the lower light-guiding eaves 3. In this way, the upper light-guiding eaves 4 and the lower light-guiding eaves 3 are an integrated structure, which are respectively the upper and lower side walls of the U-shaped box. The lower side wall of the lower light-guiding eaves should extend an eaves-like structure in the direction of the focusing groove.

[0066] Optionally, a reflective layer may be covered at a corresponding position of the inner wall of the transverse U-shaped light-emitting box (ie, the transverse light-laying channel).

[0067] Furthermore, a hollow light-transmitting pattern is arranged on the upper side wall of the horizontal U-shaped light-emitting box (i.e., the upper light-guiding eaves 4), and the light transmitted in the horizontal light-paving channel can reveal the light-emitting pattern through the hollow light-transmitting pattern, and the light-transmitting pattern can be viewed from the front, thereby decorating the overall light-paving effect.

[0068] Further, such as Figure 1DAs shown, the main difference from the above-mentioned embodiment structure is that the LED strip light source 1 itself is a light projector. The LED strip light source 1 is arranged on the front surface of the lower light guide eaves 3 and emits light vertically upward; it also includes a transverse light-transmitting cover 12, which is a transparent material and transversely covers the side of the transverse light-laying channel close to the focusing groove. The transverse light-transmitting cover 12 is used to ensure the cleanliness of the transverse light-laying channel. The light emitted by the LED strip light source 1 is reflected and scattered by the transverse inner wall of the U-shaped box (i.e., the transverse light-laying channel), and is indirectly projected to the space below the focusing groove 10 through the transverse light-transmitting cover 12. In this structure, the transverse light-transmitting cover 12 of transparent material does not change the transmission direction and angle of the light passing through its thickness direction, that is, it does not cause light scattering, so it is not a part of the light projector. In addition, in this structure, it can be regarded as a special embodiment in which the upper light guide eaves 4 and the lower light guide eaves 3 are an integrated structure. In addition, in this structure, the upper light guide eaves 4 covers the entire area of ​​the eaves structure 2 and the entire lower light guide eaves 3.

[0069] Further, such as Figure 2 As shown, Figure 1B The structure shown is mainly different in that it also includes a bottom plate 7 and a picture work 8, wherein the picture work 8 is arranged on the surface of the bottom plate 7 and is located in the center of the bottom plate 7, the bottom plate 7 and the picture work 8 are arranged below the focusing groove 10, the longitudinal projection area of ​​the focusing groove 10 covers the area of ​​the picture work 8, the eaves structure 2 is combined with the bottom plate 7 through a step-like structure to form an integral structure, that is, the eaves structure 2, which is an integral structure with the bottom plate 7, is stepped, and the bottom plate 7 is formed into a concave shape through the step-like structure, and the picture work 8 is arranged at the bottom of the concave structure of the bottom plate 7, so as to ensure that the eaves structure 2 is higher than the surface of the picture work 8 located below the focusing groove 10, and the longitudinal distance between the surface of the picture work 8 and the surface of the eaves structure 2 is not less than the longitudinal distance between the surface of the eaves structure 2 and the back of the upper light guide eaves 4. The light projected into the space below the focusing groove 10 is finally spread on the surface of the picture work 8. The picture work 8 can be a painting or calligraphy work, a photo, a print, a knitted embroidery work, a sculpture, an antique collection, or a substrate with a luminous pattern. Optionally, the painting work and the base plate are an integrated structure, that is, the painting work itself is the base plate or the base plate itself is the painting work.

[0070] It also includes a picture frame 9, an upper light guide eave 4, a lower light guide eave 3 (i.e. the peripheral outer edge of the bottom plate 7) and a light projection component, all of which are arranged under the front frame eaves of the picture frame 9. The picture frame 9 has the function of decoration and stabilizing the overall structure.

[0071] It also includes a transparent protective layer 11, which is a transparent material and is arranged above the upper light guide eaves 4. The transparent protective layer 11 covers the entire area of ​​the upper light guide eaves 4 and the entire slot area of ​​the focusing slot 10 from the front. The transparent protective layer 11 plays a role in keeping the inside of the focusing slot 10 clean.

[0072] Optionally, the upper light guide eaves 4 may be disposed above the transparent protective layer 11 .

[0073] Furthermore, the transparent protective layer 11 is a one-way glass or a glass covered with a one-way film, that is, the scene on the back side (rear) can be seen from the front, but not in the reverse direction or the reverse light transmittance is lower than the forward light transmittance. The light projector arranged under the transparent protective layer 11 emits light, and part of the light is reflected by the transparent protective layer 11 with one-way light transmittance characteristics at the front notch of the focusing groove 10 to the bottom of the focusing groove 10, thereby improving the brightness and quality of the lighting.

[0074] in addition, Figure 2 In the structure shown, the light projecting member is a light emitting structure composed of an LED strip light source 1, a horizontally arranged transparent light guide plate 5, and a non-transparent light-transmitting material 6. The groove opened on the transparent light guide plate 5 for placing the LED strip light source 1 is a transparent groove. Figure 1B The light projecting member in the structure shown is connected to the non-transparent light-transmitting material 6 at the light-emitting side end face of the transparent light guide plate 5, which has a light-evening effect. If the non-transparent light-transmitting material 6 is not connected, the light spot of the LED strip light source 1 can be seen from the light-emitting side end face of the transparent light guide plate 5, that is, each LED lamp bead on the LED strip light source 1 can be seen, because the transparent light guide plate 5 is a transparent material; after connecting to the non-transparent light-transmitting material 6, the LED lamp bead cannot be seen, and the entire non-transparent light-transmitting material 6 emits light evenly. Moreover, compared Figure 1B The structure shown, Figure 2 The width of the eaves structure 2 of the structure shown (i.e., the distance between the outer edge of the eaves structure 2 at one end close to the focusing groove 10 and the light projecting element) is significantly widened, which means that the light scattered from the non-transparent light-transmitting material 6 of the light projecting element is transmitted over a longer distance in the horizontal light-laying channel, which will make the light laying uniformity and effect on the surface of the painting 8 better.

[0075] Further, such as Figure 3 As shown, the main difference from the above embodiment is that the LED strip light source 1 in the light projecting member is arranged on the inner wall of the picture frame 9, emits light laterally and directly projects light to the non-transparent light-transmitting material 6; the eaves-like structure 2 which is an integral structure with the bottom plate 7 is another step-shaped structure, such as Figure 3As shown; a portion of the stepped eaves structure 2 is significantly higher than the surface of the bottom plate 7 located within the longitudinal projection area of ​​the focusing groove 10, and the longitudinal distance between the surface of the bottom plate 7 below the focusing groove 10 and the highest point of the stepped eaves structure 2 is not less than the longitudinal distance between the highest point of the stepped eaves structure 2 and the back of the upper light-guiding eaves 4. The upwardly raised step portion of the stepped eaves structure 2 in this structure blocks a portion of the light directly projected from the light projector to the focusing groove 10, and at the same time reduces the height of the horizontal light-laying channel; this structure shows that the light-laying effect can be adjusted by setting a higher height portion (i.e., a raised step) at the position of the eaves structure 2 close to the focusing groove 10 and the distance between it and the light projector: the height of the raised step is proportional to the light-laying uniformity; the distance between the raised step and the light projector (i.e., the distance between the non-transparent light-transmitting material 6) is proportional to the light-laying uniformity. In addition, the lower light guide eaves 3 in this structure are step eaves; the upper light guide eaves 4 and the lower light guide eaves 3 (ie, the outer edge of the bottom plate 7 ) and the LED strip light source 1 in the light projection element are all arranged under the front frame eaves of the picture frame 9 .

[0076] Optional, Figure 3 In the structure shown, the light projecting element can be a separate LED strip light source 1, that is, no non-transparent light-transmitting material 6 is provided, and the light emitted by the LED strip light source 1 is directly projected into the focusing groove 10 and the surface of the bottom plate 7 in the space below it through the transverse light-paving channel.

[0077] Further, such as Figure 4 As shown, the main difference from the structure of the above embodiment is that the eaves structure 2 which is an integral structure with the bottom plate 7 is convex, the top surface height of the convex eaves structure 2 is higher than the surface of the bottom plate 7 below the focusing groove 10, and the longitudinal distance between the surface of the bottom plate 7 below the focusing groove 10 and the highest point of the convex eaves structure 2 is not less than the longitudinal distance between the highest point of the convex eaves structure 2 and the back of the upper light guide eaves 4, ensuring that the light radiated to the surface of the bottom plate 7 below the focusing groove 10 is projected from the top of the convex eaves structure 2. The effect and function of the convex eaves structure 2 in this structure are the same as those of the embodiment of the present invention. Figure 3 The step-shaped eaves structure in the structure shown is similar. In this structure, the lower light-guiding eaves 3 (including the convex eaves structure 2) which is an integral structure with the bottom plate 7 is a step eaves. In addition, the front frame eaves of the picture frame 9 plays the role of the upper light-guiding eaves 4, that is, the front frame eaves of the picture frame 9 and the upper light-guiding eaves 4 are an integral structure.

[0078] Further, such as Figure 5 As shown, the main difference from the above embodiment is that the light projector and the eaves structure 2 are an integrated structure, that is, the non-transparent light-transmitting material 6 in the light projector has the eaves structure 2. The width of the eaves structure 2 is not less than the height of the light projector. Figure 5In this structure, the eaves-like structure 2 is also the lower light-guiding eaves 3, and the light-projecting element is arranged on the periphery of the light-collecting groove 10 and also on the periphery of the lower light-guiding eaves 3, that is, the light-projecting element is not directly above the lower light-guiding eaves, but the light emitted by the light-projecting element must pass directly above the eaves-like structure 2. In this structure, the peripheral part of the bottom plate 7 presses against the bottom of the light-projecting element and part of the bottom of the eaves-like structure 2 from below to play a role. Figure 2 The lower light-guiding eaves in the structure shown has a partial function, but it is not integrated with the eaves-like structure 2; in addition, the upper light-guiding eaves 4 covers the entire area of ​​the eaves-like structure 2 (i.e., the lower light-guiding eaves), and when observed from the front, only the front frame eaves of the picture frame 9, the upper light-guiding eaves 4, and the surface of the bottom plate 7 within the range of the focusing groove 10 can be visually seen, but the light-projecting element and the eaves-like structure 2 cannot be seen.

[0079] Optionally, the back side of the eaves-like structure 2 integrated with the non-transparent light-transmitting material 6 may be covered with a light-shielding coating.

[0080] Optional, such as Figure 6 As shown, the main difference from the structure of the above embodiment is that the upper light guide eaves 4 is an arc-shaped eaves, and the lower light guide eaves 3 is a sloped eaves.

[0081] Further, such as Figure 7 As shown, the main difference from the above embodiment is that the upper light guide eaves 4 only covers part of the area of ​​the light projector and does not cover the eaves structure 2. The exposed part of the light projector also plays an auxiliary decorative role in the overall light-laying effect.

[0082] In the above-described embodiment, the focusing groove 10 is in a closed rectangular shape. Optionally, according to the needs of specific effects, the closed structure of the focusing groove can also be set to a triangle, a circle, an ellipse, a polygon, a heart or a fan.

[0083] Further, such as Figure 8 As shown, the main difference from the structure of the above-mentioned embodiment is that the focusing groove 10 is an open structure composed of two horizontal light-spreading channels arranged opposite to each other on the left and right, and is arranged in the picture frame 9, and the front frame eaves of the picture frame 9 are upper light-guiding eaves. From the front, the bottom plate 7 can be seen through the horizontal light-spreading channels on the left and right sides and the rectangular window surrounded by the frame eaves on the upper and lower sides of the picture frame 9. Because the focusing groove 10 with an opening structure at both ends is blocked by the picture frame 9 (in fact, the focusing groove 10 is an upper and lower opening structure), and there are no light-projecting parts and horizontal light-spreading channels around the upper and lower ends of the rectangular window. This kind of opening structure of the focusing groove can achieve a special light-spreading effect.

[0084] Other embodiments

[0085] The specific features in the above embodiments can be changed and combined to form other embodiments with other forms and structural features and satisfying the technical features of the present invention.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A uniform light paving frame, characterized in that: It includes a light projector, an upper light guide eave and a lower light guide eave; The upper light-guiding eaves and the lower light-guiding eaves which are arranged up and down and spaced a certain distance apart form a transverse light-spreading channel and are connected to the light-projecting element; the transverse light-spreading channel which includes at least two sections with opposite light-spreading directions forms a central light-focusing groove; the light-projecting element is arranged on the periphery of the light-focusing groove so that at least a part of the lower light-guiding eaves is located between the light-projecting element and the light-focusing groove to form an eaves-like structure, and the distance between the outer edge of the eaves-like structure close to the light-focusing groove and the light-projecting element is not less than the longitudinal distance between the highest point of the front surface of the eaves-like structure and the back surface of the upper light-guiding eaves, and the light emitted by the light-projecting element passes over the eaves-like structure and projects light onto the light-focusing groove and the space below the light-focusing groove.

2. A uniform light paving frame according to claim 1, characterized in that: It also includes a base plate, which is located below the focusing groove. At least a portion of the eaves-like structure surface is higher than the base plate surface within the longitudinal projection area of ​​the focusing groove. The light projected to the space below the focusing groove is spread on the base plate surface.

3. A uniform light paving frame according to claim 2, characterized in that: The longitudinal distance between the bottom plate surface below the focusing groove and the highest point of the front surface of the eaves structure is not less than the longitudinal distance between the highest point of the front surface of the eaves structure and the back surface of the upper light guide eaves.

4. A uniform light paving frame according to claim 3, characterized in that: The lower light guide eaves are arranged below the light projector, the upper light guide eaves are arranged above the light projector, and the upper light guide eaves cover the entire eaves structure area of ​​the lower light guide eaves; or, The upper light-guiding eaves covers a portion of the eaves-like structure of the lower light-guiding eaves; The light projecting member emits light through the transverse light-paving channel between the upper light-guiding eaves and the lower light-guiding eaves and projects light toward the light-focusing groove and the space below it.

5. The uniform light paving frame according to claim 4, characterized in that: The upper light guide eaves covers one of the two areas, namely, the entire area and a partial area of ​​the front surface of the light projector.

6. A uniform light paving frame according to claim 5, characterized in that: The upper light guide eaves are provided with a hollow light-transmitting pattern.

7. The uniform light paving frame according to claim 6, characterized in that: The shape of the light focusing groove is a closed structure; or, The shape of the light-focusing groove is an open structure formed by two oppositely arranged transverse light-paving channels.

8. The uniform light paving frame according to claim 7, characterized in that: The light focusing groove of the closed structure is in the shape of a rectangle, a triangle, other polygons, a circle, an ellipse, a heart, or a fan.

9. The uniform light paving frame according to claim 8, characterized in that: The lower light-guiding eaves are horizontal eaves, sloped eaves, curved eaves or stepped eaves; The upper light-guiding eaves are horizontal eaves, sloped eaves, curved eaves or stepped eaves.

10. The uniform light paving frame according to claim 9, characterized in that: The bottom plate and the eaves-shaped structure are an integrated structure.

11. A uniform light paving frame according to claim 10, characterized in that: The eaves-like structure which is an integral structure with the base plate is in a step-like or convex shape.

12. The uniform light paving frame according to claim 11, characterized in that: The light projecting element is a light emitting structure with a light diffusion characteristic.

13. The uniform light paving frame according to claim 12, characterized in that: The light projecting element is an electroluminescent device or a light emitting structure composed of an electroluminescent device and a light-transmitting material.

14. The uniform light paving frame according to claim 13, characterized in that: The light projecting element emits light laterally, with the light emitting direction being toward the light focusing groove, and directly projects light toward the light focusing groove; or The light projecting member emits light longitudinally, and indirectly projects light to the light focusing groove through reflection and scattering of at least one of the back side of the upper light guide eave and the front side of the lower light guide eave.

15. The uniform light paving frame according to claim 14, characterized in that: The light projector and the lower light guide eaves are an integrated structure.

16. The uniform light paving frame according to claim 15, characterized in that: It also includes a picture frame, and at least one of the upper light guide eaves, the lower light guide eaves and the light projection element is arranged under the front frame eaves of the picture frame.

17. The uniform light paving frame according to claim 16, characterized in that: At least two of the picture frame, the upper light guide eaves and the lower light guide eaves are integrated structures.

18. The uniform light paving frame according to claim 17, characterized in that: It also includes a picture work, wherein the picture work is arranged on the surface of the base plate; or The said painted work itself is the base; The longitudinal projection areas of the picture work and the focusing groove at least have an intersection.

19. The uniform light paving frame according to claim 18, characterized in that: The picture work is a mirror, a wall, a ceiling, a painting or calligraphy work, a photograph, a print, a knitted embroidery work, a sculpture, an antique collection, or a substrate with a luminous pattern.

20. The uniform light paving frame according to claim 19, characterized in that: It also includes a transparent protective layer, which is arranged above the upper light guide eaves; or, The upper light guide eaves is arranged above the transparent protective layer; The longitudinal projection area of ​​the transparent protective layer covers one of the entire area and a partial area of ​​the upper light-guiding eaves, and covers the entire area of ​​the light-focusing groove opening.

21. The uniform light paving frame according to claim 20, characterized in that: The transparent protective layer is one-way glass or glass covered with a one-way film.

22. The uniform light paving frame according to claim 21, characterized in that: It also includes a transverse light-transmitting cover, which transversely covers a side of the transverse light-paving channel close to the light-focusing groove.

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